Wheel for motor-vehicles.



J. V. PUGH.

WHEEL FOR MOTOR VEHICLES.

APPLICATION FILED AUG.10, 1907.

903,608. Patented Nov. 10, 1908.

2 SHBBTS-SHEET 1.

FIgAI. I fizz @wam /I J. V. PUGH.

WHEEL FOR MOTOR VEHICLES.

APPLIGATION FILED AUG.10, 1907.

Patented Nov. 10, 1908.

2 SHEETS-SHEET 2.

IIIIIIIIIIIIIIIIIIIIII JOHN VERNON PUGH, OF ALLESLEY, ENGLAND.

WHEEL FOR MOTOR-VEHICLES.

Specification of Letters Patent.

Patented Nov. 10, 1908.

Application filed August 10, 1907. Serial No. 388,013.

To all whom 'it may concern:

Be it known that I, JOHN VERNON PUGH, a subject of the King of GreatBritain and Ireland, of Guiting House, Allesley, in the county ofWVarwick, England, engineer, have invented certain new and usefulImprovements in WVheels for Motor- Vehicles, of which the following is aspecification.

This invention relates to the wheels of road vehicles, and its object isto provide a reliable and readily detachable wheel.

The invention consistsin a wheel composed of a permanent wheel hub, :3.remov able hub enveloping said permanent hub and carrying the spokes andfelly clutch members between and formed integral with I said hubs.

The invention further comprises (a) an internally-arranged lockingdevice for insuring that the removable wheel part will not come out ofplace, said locking device being of such a character that the wheelparts will not assemble unless the locking device is in proper operativeposition; (1)) means for rendering the withdrawal of the wheel easier.Thus the two hubs are held in place through the agency of a screwedmember, which, when turned in one direction,'tightens the removable hubupon the permanent hub, and when turned in the other direction, startsthe withdrawaL The engaging member for the withdrawal is herein shown aseither an oppositely screwed member or a split ring.

Referring now to the accompanying drawingsFigure 1 is a sectionalelevation through a wheel hub constructed in accordance with thisinvention; Fig. 2 is a detail view showing the pilot or finding pieceswhich I employ. for guiding the engaging members into place; Fig. 3 isan end View of the wheel hub, while Fig. 4 is a detached view showingthe permanent hub and the flutes or clutch members formed thereon; Figs.5, (3, and 7 show a modified form of locking member arid fixing for thecover; Fig. 8 shows a modified arrangement of the wheel in section.

In Fig. 1, the axle a has passed over it a permanent hub 7), whileball-bearings" j, in the case of front wheels. are placed between theaxle a and the hub b. In the case of driving wheels, however, thepermanent hub b may be keyed or otherwise attached to the axle a. Thepermanent hub is shown as composed of a shell 6 (Fig. 4) having flutesor projections 0 formed at intervals around it. These flutes engagecircumferentially, and allow of free withdrawal axiallyrthere is thus nojamming created during'driving. Ow'er the permanent hub I) there ispassed a removable hub cl, fitting easily on the permanent hub and bypreference having an ample bearing thereon, ass'li nvn. This removablehub carries the spokes e, which are attached to the tire carrying rim orfolly (not shown). The removable hub d is shown as built up of theshells 2 and f, which overlap, the shell f being arranged within theshell 2. The shell f is cut away at intervals corresponding to theintervals at which the flutes 0 are placed, so that, when the removablehub (Z is passed over the permanent hub b, the flutes 0 fit into theclefts or cut-away parts onthe shell In this way the two hubs arecoupled together at a number of points around the circumference of thehubs and a good driving connection provided between them. For thepurpose of enabling the proper circumferential position of the wheel tobe found where the clefts are opposite the flutes e, I provide a numberof V-shaped pilot. pieces 18, placed in advance of the clefts. The endsof the flutes are pointed, as shown. By this means l have found thatwhen the removable. wheel has been placed on the hub, a simple pushsuffices to get it into proper place. By making the bearing continuous,as shown, the removable wheel is steadied and held central while theengaging members are entering their clefts. Instead of fixing separatepilot pieces 18, as shown in Fig. 2, I may make a suitable indentationor impression in the shell, or other suitable finding means may be usedin those cases where speed is required in getting the wheels in place.The shell 2 is turned down at its outer end, and against thisturned-down part there bears a shoulder to formed on a cap nut engagingan internal thread on the permanent hub. Over the shoulder u, andengaging with the. removable hub (1, there is a nut. or scrcwcdring t.The cap nut g/ is screwed with a right-hand thread, while the ring 2 isscrewed with a left-hand thread.

The overhanging Iiangc 10 of the screwed ring I? is provided with anumber of castcllations 14, as seen in dotted lines in Fig. 3. Intothese castcllations there fits the cud s of a spring-pressed bar (1,which is provided with an extended tail piece. it projccting through thenut 9. Over the whole of these the locking part 8 of the spring bar 0 isnested in one of the castellations of the screwed ring 2.. This isbecause the extension 11 then projects outside the nut, and the over-alllength of the bar 0 just fits into the dished portion of the cover. Onremoval, the cover 0) is first taken ofi, then a spanner is applied tothe nut g, the act of applying the spanner being arranged to press thespring-lock 8 out of engagement with the,

castellations 14 in the ring t. The unscrewing of the nut 9 causes thering if to jam against the shoulder a on the nut g, and

thereby the withdrawal of the removable wheel is started while thepermanent hub still remains in place.

In the modification shown in Figs. 5 and 6, instead of employing aspring bar 0, a star washer or Vernier washer w is employed. Thisconsists of a plate w, pierced to fit the exterior of the hexagon on thescrewed cap nut g, and the outer ed e of the plate w is provided withcastellations fitting loosely in the recesses found on the overlappingflange of the nut t. The cover a in this case is held by a split ringadapted to fit into a groove formed in the ring t. The split ring isprovided with two turned-up portions 3 and a (see Fig. 6). The portion 3fits into a recess formed in the annulus in the coverto receive it,whilethe portion 2 projects up through a hole formed in the annulus onthe cover, so as to offer aproper gripping means for expanding the splitring y, which, when expanded, clears the groove in the ring if andpermits of the withdrawal of the cover 4).

When the parts are all properly assembled, the dished cover 4) bearsagainst the washer 111 so as to hold that washer in place, and, in fact,unless the washer w is properly in place, the cover 1) cannot be fixed,as will be readily seen-from examining the figures. The ring 25 and nutg are screwed with oppositely-handed threads, as in the form describedwith reference to Figs. 14, and for the same purpose.

According to the form of the invention shown in F1 8, split piston ringsare eniployed for e fiecting the connection between the removable huband the permanent hub. The overlapping parts of the hub d are extendedto the removal or outer side of the wheel, as shown, and v are providedwith flanges 4, 5, forming an annulus for a split spring ring 6. Theflange 5 is provided with a groove or inset 7, in which the ring 6 findsa seating when the wheel is screwed up into position. The split ring 6also rests in a groove in the nut g, which in this form is ratherlonger, and at its inner end is provided with a wide groove 8, in whicha split ring, 9, finds a seating. This split ring prevents the nut gfrom coming entirely out of place. a necessity. It'will be seen that thespace in which the split ring 6 is situated is arranged with a step, sothat when the nut g is tightened up into position, it is impossible forthe ring 6 to expand, and, consequently, the hub cannot becomeaccidentally detached.

The operation of this device is as follows: Assume the detachable wheelto be already fixed on the hub, then, to remove it, first unscrew thenut g, so as to carry the split ring 6 away from engagement with thestep 7 into the deeper space between the flanges 4 and 5; unscrew alittle further, until the ring 6 bears against the hub 4, therebystarting the removal of the wheel and getting a split ring, 9, finds aseating. This split ring ring may now be expanded by pulling aprojection 10, similar to the turn-up 2 described with reference to Fig.6, and the wheel may then be readily withdrawn. To put the wheel onagain, it is only necessary to push it over the hub until the ring 6springs into place in its groove on the nut g, then, by tightening thenut g, the wheel is once more heldsecurely up into its properposition,;so that the ring 6 cannot expand. This form of attachingdevice is exceedingly speedy, and enables repairs or renewals to beefi'ected with a minimum of delay.

In some cases the groove for the split ring 6 may be formed in thepermanenthub b, but this necessitates very accurate workmanship, inconsequence of which I usually prefer to provide the groove in the nut9.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part enveloping said permanent hub part and carrying thespokes and telly, clutch members between and formed integral with saidhubs, a holding nut and locking means carried by and inclosed withinsaid nut.

2. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part enveloping said permanent hub part, clutch membersbetween and formed integral with said hubs, a screw cap nut and inclosedlocking means for holding and retaining said ,hubs in working position,and a releasing element on said inclosed locking means projectingthrough the locking nut.

The split ring 9, however, is not 3. A wheel for motor vehiclescomprisin a permanent hub part, a removable hub pai t enveloping saidpermanent hub part and carrying the spokes and felly, clutch membersbetween and formed integral with said hubs, and means for positivelywithdrawing the relmovable from the permanent hub part.

4. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part enveloping said permanent hub part and carrying thespokes and fellv, clutch members between and formed integral with saidhubs, a screw cap nut .for holding said hubs in operative position, andmeans operated by said nut for positively withdrawing the removablewheel part.

5. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part enveloping said permanent hub and carrying the spokesand felly, clutch members between said hubs, a cap nut holding said hubsin position, and inclosed locking means for retaining said detachablehub upon said permanent hub.

6. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part enveloping said permanent hub and carrying the spokesand felly, and means for positively withdrawing said removable from saidpermanent hub.

7. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part enveloping said permanent'hub and carrying the spokesand felly, a screw nut holding said parts in working position, and meansfor positively withdrawing the removable hub from the permanent hub.

8. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part enveloping said permanent hub and carrying the.spokes and felly, clutch members between said removable and saidpermanent hub, a screw nut holding said parts in working. position, andmeans for positively withdrawing said removable from said permanent hub.

9. A wheel for motor vehicles comprising a permanent hub part, aremovablehub part enveloping said permanent hub, circumferentiallyengaging clutch members between said hubs, and means for positivelywithdrawing said removable from said permanent hub by relative axialdisplacement.

10. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part composed of overlapping shells with a plurality ofclefts on the inner shell, and a plurality of flutes on v the permanenthub engaging in the cletts on the shell.

11. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part composed of overlapping shells with a plu rality ofcletts on the inner shell, a plurality of flutes on the permanent hubengaging in the clefts on the shell, and a screw cap nut retaining saidparts in working relationship. 12. A wheel for motor vehicles comprisinga permanent hub part, a removable hub part enveloping said permanenthub, clutch members between said permanent and removable hubs, a.screwed nut holding said hubs in engaging position, and an oppositelyscrewed ring co-acting with said screwed nut for the removal of thewheel.

13. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part, clutch members between said parts, a screwed nutgearing with said permanent hub and having a shoulder bearing on saidremovable hub, and an oppositely screwed ring gearing with saidremovable hub and co-aeting with the shoulder on said nut for theremoval of the wheel.

14. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part, clutch members between said parts, a screw capgearing with said permanent hub and bearing against said removable hub,a spring-pressed locking bar -arried by said screwed cap, and aco-acting socketed member with which said spring bar engages,substantially as described.

15. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part, a screwed cap holding said parts in proper relativeposition, locking means carried by said'screwed cap and an externalprdtecting cover over said cap and locking means, substantially asdescribed.

16. A Wheel for motor vehicles comprising a permanent hub part, aremovable hub part, a screwed cap holding said parts in proper relativeposition, an oppositely screwed ring with a castellated flange, a

spring-pressed bar carried by said screwed cap and adapted to engagewith the castellations for the purpose of locking the screw cap.

17. In combination with a detachable wheel, a protecting cover forthehub retaining means with an annular groove formed therein, a split ringin said groove adapted to engagein a groove on the hub retaining meansonly when these are properly locked and assembled in position.

18. A wheel for motor vehicles comprising a permanent hub part, aremovable hub part composed of partly overlapping shells with cleftsformed in the inner shell, projections on the permanent hub engagingsaid clefts, a screwed cap gearing with said permanent hub and having ashoulder hearing against said removable hub, an oppositely screwedcastcllated ring engaging said removable hub, a spring-pressed lockingbar carried by said screwed cap and engaging in the castellations insaid oppositely screwed ring, a protecting cover adapted'to pass intoplace only when sai'd spring pressed bar is properly housed between thecastellations.

19. A removable wheel for motor vehicles comprising a permanenthub part(7)) carrying clutch members 0, a removable hub part composed ofoverlapping shells (2 and f) engaging with said clutch members, ascrewed cap nut .9 having a shoulder a formed thereon, an oppositelyscrewed ring (I?) gearing with a screw on the removable hub and having aeastellated flange overlapping said shoulder at, a spring-pressedlooking bar extending through the screwed cap and arranged to engage incastellations on ring if, and an outer protecting cover, substantiallyas described.

20. A" removable wheel for motor vehicles comprising a permanent hubpart, a reulovab'le hub part, clutch men'lbers between JOHN VERNON PUGH.

Witnesses ERN EST IIARKER, KA'rnLuuN TnolursoN.

presence of v

